Question

直接写得数 10÷ 5 3 = 1 2 - 2 5 = 4 5 × 5 7

直接写得数 10÷ 5 3 = 1 2 - 2 5 = 4 5 × 5 7 = 4 5 ÷ 4 5 + 1 7 = 1÷ 3 8 = 9× 5 6 = 0.8- 3 4 = 2 3 ×1.2-0.2 =

Answer 1

①10÷ 5 3 =6； ② 1 2 - 2 5 = 1 10 ； ③ 4 5 × 5 7 = 4 7 ； ④ 4 5 ÷ 4 5 + 1 7 = 8 7 ； ⑤1÷ 3 8 = 8 3 ； ⑥9× 5 6 = 15 2 ； ⑦0.8- 3 4 =0.05； ⑧ 2 3 ×1.2-0.2 =0.6．